Home / 18,700-40,538

Finding the Third Proportional to 18,700 and 40,538

Calculator

Solution

The third proportional to 18,700 and 40,538 is: 87,878.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,700 : 40,538 = 40,538 : x
  2. Step 2: Convert to fraction form
    18,700/40,538 = 40,538/x
  3. Step 3: Cross multiply
    18,700x = 40,538 × 40,538
  4. Step 4: Simplify right side
    18,700x = 1,643,329,444
  5. Step 5: Solve for x
    x = 1,643,329,444/18,700
  6. Step 6: Final answer
    x = 87,878.58

Related Problems

Find third proportional to 9,350 and 20,269
Half scale
Find third proportional to 37,400 and 81,076
Double scale
Find third proportional to 18,702 and 40,542
Similar ratio
Find third proportional to 28,050 and 60,807
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.